Title: Ops Day Shift: 15:00-23:00UTC, 8:00-16:00PT, all times in UTC

H1 State: locked in ENGAGE_ISS_2ND_LOOP

Help: Sheila and Evan

Overview: H1 lost lock after violin 2nd harmonics rung up about 14 hours ago.  Kiwamu worked on it, then Sheila, and now Sheila and Evan.

Details: Violin 2nd harmonic at 1008.45 has been ringing up for a few days, and last night caused a lock loss.  There is a nearby peak at 1008.49. 

Day was spent working on filter gain and phase to lower peak - time consuming, and within the last 30 minutes, the peak is now coming down in amplitude.  Details in Sheila's alog.

ISI blend filters changed to 45mHz, which helped, given the useism.

No other issues to report.